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Bi-Layered Network Model Of Command Information System Based On Task Flow, Cui Qiong, Jianhua Li, Haodan Ran, Mingli Nan 2020 1. Information and Navigation College, Air Force Engineering University, Xi'an 710077, China;;

Bi-Layered Network Model Of Command Information System Based On Task Flow, Cui Qiong, Jianhua Li, Haodan Ran, Mingli Nan

Journal of System Simulation

Abstract: As the monolayer and static network model can not reflect the hiberarchy and task property of command information system, a bi-layered network model of command information system based on task flow is established. The dynamic operation mechanism and layered network structure are descripted on the basis of task、structure and function of the system. The bi-layered network consisting of communication network and function network is defined based on the task property and layered network theory. The simulation takes the joint air defense operation command information system as an example and the results demonstrate the effectiveness of the model. The proposed …


Performance Analysis Of Digital Refocusing Process Based On Light Field Imaging, Suping You, Yucheng Lu, Zhang Wei, Yang Bo 2020 1. School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology,Shanghai 200093;;2. School of Science, Hangzhou Dianzi University, Hangzhou,Zhejiang 310018;

Performance Analysis Of Digital Refocusing Process Based On Light Field Imaging, Suping You, Yucheng Lu, Zhang Wei, Yang Bo

Journal of System Simulation

Abstract: Digital refocusing is one of the important properties of light field imaging, and the analysis of its performance has important reference value for the study of light field imaging. In this paper,two different digital refocusing algorithms based on the microlens array light field camera (LFC) in spatial and frequency domain are presented. We study the influences of different domains, interpolation methods and sample radius in digital refocusing algorithm on image quality and computation speed. And we yield a tradeoff between image quality and time consumption in two domains. Experiment results suggest that the two algorithms can achieve digital refocusing …


Design And Implementation Of Online Interactive Educational Game Based On Somatosensory, Ban Rui, Dandan Ding, Mingmin Zhang, Huaqing Shen 2020 1. Digital Media and HCI Research Center, Hangzhou Normal University, Hangzhou 310012;;

Design And Implementation Of Online Interactive Educational Game Based On Somatosensory, Ban Rui, Dandan Ding, Mingmin Zhang, Huaqing Shen

Journal of System Simulation

Abstract: The somatic game has been widely used in the educational field because of the advantages of excellent experience, multi sense and student-centered. But now, the commonly used somatic game equipment is based on PC, such as Kinect, which does not support browsing on web and requires long period development, failing to meet the teaching demands. This leads to the slow and imbalanced developments of somatic-based education game. To solve those problems, this paper puts forward a solution, which combines Websocket communication mechanism and Kinect recognition mode. In order to promote the integration of education and games, this paper further …


Line-Rate Defenses Approach Against 10 Gbps Ddos Attacks, Su Cheng, Wentong Wang, Shibao Yang, Xv Linlin, Xinan Tang 2020 1. 3 JiLing University of Tech., Najing 211106, China, China;;

Line-Rate Defenses Approach Against 10 Gbps Ddos Attacks, Su Cheng, Wentong Wang, Shibao Yang, Xv Linlin, Xinan Tang

Journal of System Simulation

Abstract: Defenses approach against DDoS(Distributed Denial of Service) attacks is currently an important hot issues. We propose a new efficient defenses approach which adopts a detection system based on metadata analysis to identify the packages of DDoS attacks. The flow control rules are formed based on the summarized experience data. ACL (Access Control List) is applied through inline devices (firewalls and load balancers) or divider to limit rate, clean flow or drop package. 10Gbps bandwidth HTTP requests, which contain malicious DDoS attacks packages, can be detected and cleaned completely in line-rate speed. We especially summarize th traffic characteristics …


Loitering Munition's Speediness Prototype And Integrated Modeling Based On X-Plane, Zengyan Li, Xiaomin Li 2020 1. Northwest Institute of Nuclear Technology, Xi'an 710024, China;;2. Department of UAV Engineering, Ordnance Engineering College, Shijiazhuang 050003, China;

Loitering Munition's Speediness Prototype And Integrated Modeling Based On X-Plane, Zengyan Li, Xiaomin Li

Journal of System Simulation

Abstract: Aiming at the difficulty and long cycle of R&D in mathematical modeling and aerodynamic parameters analysis during the process of loitering munition's preliminary design and verification, the speediness prototype and integrated modeling method based on X-Plane is proposed. The loitering munition's characteristics is analyzed. Meanwhile, the operation mechanisms of various simulation methods are summarized. The principle of X-Plane is also analyzed. Speediness prototype is realized through modeling, which is independent of the mathematical model and aerodynamic parameters. The airfoil and blade design are improved and special controls are implemented, such as mixing, parachute and folding …


Fuzzy Sliding Mode Control Of Double Inverted Pendulum Based On Linear Adaptive Qpso Tuning, Xin Jing, Xiangshuai Han, Yanming Liang, Cuicui Yan 2020 1. School of Automation & Information Engineering, Xi'an University of Technology, Xi'an 710048, China;;2. Shaanxi Key Laboratory of Complex System Control and Intelligent Information Processing, Xi'an 710048, China;;

Fuzzy Sliding Mode Control Of Double Inverted Pendulum Based On Linear Adaptive Qpso Tuning, Xin Jing, Xiangshuai Han, Yanming Liang, Cuicui Yan

Journal of System Simulation

Abstract: To solve the problem of balancing control of linear double inverted pendulum, fuzzy sliding mode control method based on linear adaptive QPSO tuning is presented. According to the coupling property of the linear double inverted pendulum system, decoupling is applied twice and fuzzy sliding mode balancing controller is designed. The parameters of fuzzy sliding mode controller are determined by the linear adaptive quantum particle swarm optimization algorithm (LAQPSO). Linear double inverted pendulum balancing control simulation results show that the proposed method can effectively reduce the chattering phenomenon existing in the traditional sliding mode controller and improve the accuracy and …


Ant Colony Search Skeleton Extraction Methodbased On Distance Transform, Zhaoyuan Zhang, Dai Ning, Liu Hao, Dawei Li 2020 School of Mechanical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;

Ant Colony Search Skeleton Extraction Methodbased On Distance Transform, Zhaoyuan Zhang, Dai Ning, Liu Hao, Dawei Li

Journal of System Simulation

Abstract: Forsolving the poor connectivity problems of skeleton extraction method based on distance transform, ant colony search skeleton extraction method based on distance transform is proposed. The objects potential skeleton points are obtained according to the distance transform and its gradient.By controlling the polygon approximation errorofthe object boundary curve, the boundary vertices with different contribution to the object shape information are determined,and the convex vertices are takenas the endpoints of the object'sskeletonline.The endpoints of redundant skeleton branches are eliminated according to the inner angle size of the endpoint .The heuristic guidance function is determined by distance transformation gradient, pixel …


Multi-Objective Image Threshold Segmentation Based On Statistical Curve Difference Method, Yuanfei Zhu, Sixiang Zhang, Zhou Wei, Xiaochen Wang, Zhidong Li 2020 School of mechanical engineering, Hebei University of Technology, Tianjin 300130, China;

Multi-Objective Image Threshold Segmentation Based On Statistical Curve Difference Method, Yuanfei Zhu, Sixiang Zhang, Zhou Wei, Xiaochen Wang, Zhidong Li

Journal of System Simulation

Abstract: In order to accurately segment the multi-objective image whose objective area is too small, and the background gray value is similar to the objective, a threshold segmentation algorithm based on statistical curve difference method is proposed. The mountain model of multi-objective gray image is established and the gray image is normalized. The number of connected area is counted by threshold division. The statistical curve is plotted with the horizontal coordinate being the gray level with equal interval, and the vertical coordinate being the counting result. The threshold point is the point where the difference value of the statistical …


Three-Point Subdivision Scheme With Multi-Parameters For Reproducing Conic Splines, Huanxi Zhao, Qiu Xia 2020 1. School of Computer & Information Engineering, Xiamen University of Technology, Xiamen 361024, China;;2. School of Information Science & Engineering, Central South University, Changsha 410083, China;

Three-Point Subdivision Scheme With Multi-Parameters For Reproducing Conic Splines, Huanxi Zhao, Qiu Xia

Journal of System Simulation

Abstract: A non-static and non-stationary three-point subdivision schemes with three parameters was proposed to generate piecewise C1 rational quadratic Bezier spline curves. In particular, for special values of the tension parameters, the proposed scheme will be capable of reproducing all conic sections exactly and conic spline curve. In addition, the proposed subdivision scheme is approximation-type, but the limit curve generated by such scheme interpolates the initial control points, and by selecting the appropriate parameters, the proposed scheme is circle-preserving, line-preserving, cusp-preserving. Numerical examples show that the proposed subdivision scheme has a strong modeling capability.


Simulation On Switch Reluctance Motor Vibration Under Load Condition Based On Ansys, Luan Ru, Jinru Guo 2020 Beijing University of Civil Engineering and Architecture, Beijing 100044, China;

Simulation On Switch Reluctance Motor Vibration Under Load Condition Based On Ansys, Luan Ru, Jinru Guo

Journal of System Simulation

Abstract: At present, the research on the vibration problem of switched reluctance motor is limited to the natural mode analysis under no-load condition. The coupling calculation of transient electromagnetic field and structure dynamic field in SRM is deduced. It is proved that the vibration results of SRM can be obtained under the load. An improved simulation method is proposed to improve the data link of Workbench ANSYS, and to realize the direct coupling of the whole data link between the transient electromagnetic field and the transient structural dynamic field. The simulation method is described in detail for a specific SRM …


Vehicle-Distance Measurement Based On Plate Area, Chunlian Yao, Shengnan Feng, Fangfang Zhang, Huilin Si 2020 School of Computer and Information Engineering, Beijing Technology and Business University, Beijing 100048, China;

Vehicle-Distance Measurement Based On Plate Area, Chunlian Yao, Shengnan Feng, Fangfang Zhang, Huilin Si

Journal of System Simulation

Abstract: Estimating the distance between two vehicles is very important for transport safety. In order to keep the driving safety and avoid the traffic accidents, the visual-based vehicle detection and vehicle distance measurement are studied. In order to improve the detection precision and shorten the testing time, frame difference is combined with adaboost algorithm to detect vehicle. In the part of distance measurement, a method to calculate the distance between vehicles based on the pixels size of the vehicle's plate area in the image is proposed. Firstly, the image of the rear end of the vehicle is processed for …


3d Scene Reconstruction Based On Mismatching Eliminating Algorithm, Liping Lin, Yaping Zhang 2020 School of Information, Yunnan Normal University, Kunming 650500, China;

3d Scene Reconstruction Based On Mismatching Eliminating Algorithm, Liping Lin, Yaping Zhang

Journal of System Simulation

Abstract: For the case of mismatching in feature detection and matching based on SIFT algorithm, a method based on RANSAC is proposed in this paper to eliminate false matches. RANSAC treats all input data differently. An objective function is created and its parameters are estimated by iterative algorithm. All the data are divided into two categories based on the estimated parameters and the points that satisfy the estimated parameters are reserved and the points which do not satisfy the estimated parameters are eliminated. And then the function parameters are re-estimated with all the satisfied points. Experiment results show that …


Role And Background Effects Enhancement In Holographic Projection, Desheng Lü, Zhiye Lin, Kong Lu 2020 School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China;

Role And Background Effects Enhancement In Holographic Projection, Desheng Lü, Zhiye Lin, Kong Lu

Journal of System Simulation

Abstract: Although holographic projection technology combined with three-dimensional animation can be seen on many shows nowadays, the poor ability to identity the black color and the high requirement for camera's placement, which lead to the lack of content and high complexity, have become main restrictions for the development of holographic animation. An algorithm is proposed to replace or adjust the lightness of black color in holographic animation to improve the projection. The linkage of camera in four directions is studied to facilitate the acquisition of holographic projection images, which enhances the holographic animation effect. Finally, a real projection platform …


Fault Diagnosis Method Of Pmsm Based On Adaptive Dynamic Cat Swarm Optimization Of Svm, Wang Yan, Wang Xin, Zhicheng Ji, Dahu Yan 2020 Engineering Research Center of Internet of Things Technology Applications Ministry of Education, Wuxi 214122, China;

Fault Diagnosis Method Of Pmsm Based On Adaptive Dynamic Cat Swarm Optimization Of Svm, Wang Yan, Wang Xin, Zhicheng Ji, Dahu Yan

Journal of System Simulation

Abstract: In order to solve the problems of common inter-turn short circuit faults of permanent magnet synchronous motor (PMSM), a corresponding motor fault model based on the existing basis of PMSM is established. The eigenvector is extracted by energy spectrum analysis. The penalty factor and RBF-kernel parameter of SVM are optimized by adaptive dynamic cat swarm optimization (ADACSO) algorithm. The optimized SVM is adopted to motor fault diagnosis. The eigenvector obtained by energy spectrum analysis is taken as sample data to conduct simulation experiment. The experiment results indicate that, compared with other optimization algorithms, using ADACSO to optimize …


Design Of Multi-Scenario Simulation Of Molten Iron Logistics System With Cranes And Cross-Train Agvs, Shaowen Lu, Xiaochuan Luo 2020 State Key Laboratory of Synthetical Automation for Process Industries, Northeastern University, Shenyang 110819, China;

Design Of Multi-Scenario Simulation Of Molten Iron Logistics System With Cranes And Cross-Train Agvs, Shaowen Lu, Xiaochuan Luo

Journal of System Simulation

Abstract: Iron and steel complexes prefer a new molten iron logistics technology which involves cranes and cross-train AGVs (Automated Guided Vehicle) for transportation. The key concern of decision-makers is how to evaluate the safety and performance of the logistics design. For using simulation, it needs to solve the multi-scenario what-if simulation problems caused by uncertain processing time and crane yielding. An object-oriented simulation design method and finite state automata based modeling techniques were introduced. A multi-scenario simulation procedure was introduced. The proposed techniques can improve the flexibility, configurability and reusability of the simulation system effectively.


Skylight Opening Degree Prediction Method Based On Parallel Clustering, Deng Li, Yu Yue, Honglin Pang, Minrui Fei 2020 1. School of Mechatronics Engineering and Automation, Shanghai University, Shanghai 200072, China;;2. Shanghai Key Laboratory of Power Station Automation Technology, Shanghai 200072, China;

Skylight Opening Degree Prediction Method Based On Parallel Clustering, Deng Li, Yu Yue, Honglin Pang, Minrui Fei

Journal of System Simulation

Abstract: To process the massive distributed data and control the agricultural facilities intelligently, a parallel Dirichlet Process Mixture Model (DPMM) clustering method was proposed based on Spark. With this method, the prediction model of greenhouse skylight opening degree was obtained by training the agricultural environmental and facilities data. The model was used to predict the greenhouse skylight opening degree. Through several comparison experiments, both the feasibility and the efficiency of the proposed parallel clustering were verified, the prediction accuracy was calculated. The experimental results show that the proposed approach has higher efficiency and accuracy.


Research And Implementation Of Question Answering System Oriented Wargaming Based On Aiml, Zejian Sun, Guangya Si, Liu Yang 2020 The Department of Information Operation& Command Training, NDU, Beijing 100091, China;

Research And Implementation Of Question Answering System Oriented Wargaming Based On Aiml, Zejian Sun, Guangya Si, Liu Yang

Journal of System Simulation

Abstract: Wargaming exercise is an important means of combat simulation, but the high query and operation threshold of wargaming system limit its use and extension. Through investigating the actual operation process of a wargaming exercise, collecting and analyzing the trainees use requirements, the intelligent question answering system centering on access to the database by making knowledge documents, index tables and access modules was designed based on AIML(Artificial Intelligence Markup Language) and ALICE program, adopted heuristic rules. The implementation of question answering system made commanders participating in wargaming query data by natural language, provided ideas for the further improvement of wargaming …


Development And Future Trend Of Computer Simulation And Quantum Computer Simulation, Wenhui Fan, Jiahui Wu 2020 1. Department of Automation, Tsinghua University, Beijing 100084, China; ;

Development And Future Trend Of Computer Simulation And Quantum Computer Simulation, Wenhui Fan, Jiahui Wu

Journal of System Simulation

Abstract: The development status of computer simulation in America and the development status of computer simulation in China were summarized; On the base of the comprehensive analysis of the development of quantum computing, the quantum computer based simulation(QCBS) was proposed, and the research fields of quantum computer based simulation were given including simulation modeling theory, simulation system and simulation application of QCBS; The application prospects of QCBS, such as applying in intelligent simulation, virtual simulation, parallel simulation and cloud computation based simulation, were proposed.


Source Location Algorithm Based On Chaos Artificial Bee Colony Algorithm, Yecai Guo, Weiwei Ma, Sainan Zhu 2020 1. School of Electronic and Information Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China; ;2. Jiangsu Collaborative Innovation Center on Atmospheric Environment and Equipment, Nanjing University of Information Science & Technology, Nanjing 210044, China;

Source Location Algorithm Based On Chaos Artificial Bee Colony Algorithm, Yecai Guo, Weiwei Ma, Sainan Zhu

Journal of System Simulation

Abstract: Aiming at defects of large computational complex and poor real-time performance of the traditional power controlled response and phase transformation (Steering response power-phase transform, SRP-PHAT) based source localization algorithm, a novel SRP-PHAT source localization algorithm based on chaos artificial bee colony algorithm was proposed. In this proposed algorithm, the beam power function of the microphone array was used as the objective cost function to establish the mathematical model of the source localization, the global coverage of chaos and fast convergence speed and strong robustness of the artificial colony algorithm were combined to realize 3D localization of the sound source. …


Meta Modeling Methodology For Cnc System, Suhua Xiao 2020 College of Electromechanical Engineering, Guangdong Polytechnic Normal University, Guangzhou 510635, China;

Meta Modeling Methodology For Cnc System, Suhua Xiao

Journal of System Simulation

Abstract: Methodology development of CNC system takes the field as a carrier centric model, which applies UML / OCL in GME for CNC system meta-modeling. For the field characteristic analysis for CNC, a CNC field oriented CNCVFC meta-modeling methodology was proposed, which combined the view, feature, component three-dimensional relationship. According to field characterization CNC members and interactions, multi-view approach captures features CNC field was adopted, which mapped to the appropriate view plane to establish the appropriate view of the container field meta-model, CNC elaborated meta-modeling process, including structural meta-modeling, function meta-modeling and non-functional meta-modeling of three areas. A …


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